Conveners
D1: HL-LHC: Tracker Upgrades
- Burkhard Schmidt (CERN)
While the on-going Run-3 data-taking campaign will provide twice the integrated proton-proton luminosity currently available at the LHC, most of the data expected for the full LHC physics program will only be delivered during the HL-LHC phase. For this, the LHC will undergo an ambitious upgrade program to be able to deliver an instantaneous luminosity of $7.5\times 10^{34}$ cm$^{-2}$...
The ALICE experiment at CERN is developing an upgrade of the three innermost layers of the Inner Tracking System (ITS3) vertexing detector, to be installed during the Long Shutdown 3 of the LHC (2026-28)[1]. It will consist of three truly cylindrical sensors wrapped around the beam pipe, a concept that is enabled by the flexible nature of silicon when thinned down to less than 50 µm[2]. The...
The Inner Tracker of the CMS experiment will be replaced during the Phase-2 upgrade in order to maintain nominal performance under the harsh conditions of HL-LHC. The main factors defining the new detector design are:
- radation dose: 1 MeV neutron equivalent fluence of up to 2.3 x 10^16 neq/cm^2 and a total ionizing dose (TID) of up to 12 MGy (1.2 Grad);
- projected hit rates of...
In the high-luminosity era of the Large Hadron Collider, the instantaneous luminosity is expected to reach unprecedented values, resulting in up to 200 proton-proton interactions in a typical bunch crossing. To cope with the resulting increase in occupancy, bandwidth and radiation damage, the ATLAS Inner Detector will be replaced by an all-silicon system, the Inner Tracker (ITk). The innermost...
The ALICE collaboration foresees the replacement of the three innermost layers of the present inner tracking system (ITS2), during the LHC long shutdown 3, with a completely new system, called ITS3. The expected performance will improve the pointing resolution of the tracking, particularly at low transverse momentum, hence significantly extending the heavy flavour physics program of the...
